When you get here, go for 'expert level'! Here you can really show off your skills by adding the functionality below.

AutoFRAME 0.31 is of course already a fantastic product but wouldn't it be nice if we could do the set up remotely? We have used the serial monitor until now, to send data from the Arduino to the laptop (or similar in TinkerCad). Now we want to use the serial monitor to set AutoFRAME by sending commands from the serial monitor to the Arduino. Think about setting the countdown time or the LED pattern shown during the countdown. How to receive commands on an Arduino from the serial monitor can be seen here:

https://www.arduino.cc/reference/en/language/functions/communication/serial/read/.

So the extra requirements are:

The countdown time can be set from the serial monitor by, for example, typing 'countdown 10' in which the countdown time is set to 10 seconds.

The LED pattern that is displayed during the countdown can be set, for example, by typing 'pattern 3' with which LED pattern 3 is displayed during the countdown.

If the above is successful, it is easy to add additional commands. Think of useful commands to set or remotely control AutoFRAME.

Good luck!